The first thing I would check is the idle air control valve. It is a major player for cold starting and idle air control. They can stick and not close enough causing the air fuel mixture to be too lean for cold engine operation. Sometimes you can verify it by starting the engine cold and when it is running poorly lightly tap on the valve with a small hammer. If the idle speed increases to normal cold high idle then replace the valve.

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The first thing I would check is the idle air control valve. It is a major player for cold starting and idle air control. They can stick and not close enough causing the air fuel mixture to be too lean for cold engine operation. Sometimes you can verify it by starting the engine cold and when it is running poorly lightly tap on the valve with a small hammer. If the idle speed increases to normal cold high idle then replace the valve.

If you are satisfied with your answer, please take a moment to rate my service as you see fit. Experts are not compensated without a positive rating. Providing a rating does not close the question, you can reply or ask additional questions without incurring further charges.

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Customer reply replied 2 years ago

I should have told you I cleaned intake assembly in Sep. 2015... today I found the problem when I moved a trailer, my O.D. shut off button would not work and found a pinched and shorted wire (what a mess) still not shure why it didn't through a code or blew a fuse .

I will tell you that...the things you have to go through to be an Expert are quite rigorous.

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Ron

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.